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广西某锑多金属矿选矿工艺研究
- 作者：
- 范美康|韩广
- 作者单位：
- 南丹县南国矿业有限责任公司|昆明理工大学国土资源工程学院&省部共建复杂有色金属资源清洁利用国家重点实验室
基金项目：
- 云南省基础研究计划项目（202401AU070186）
详细信息：
- 作者简介：
- 范美康（1994—），男，助理工程师，研究方向为多金属矿选矿技术；E-mail：847279961@qq.com
- 通讯作者：
- 韩广（1995—），男，讲师，博士，研究方向为浮选理论与工艺；E-mail：ghkmust@126.com
- PDF下载
Study on beneficiation process of an antimony polymetallic ore from Guangxi
- English Author：
- Nanguo Mining Co.,Ltd.,Nandan County|Faculty of Land Resource Engineering,Kunming University of Science and Technology&Province-Ministry Cooperative State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
广西某锑多金属矿中金属矿物以辉锑矿、黄铁矿、毒砂、白钨矿为主，脉石矿物包括石英、白云母、钾长石等硅酸盐矿物及方解石、白云石等碳酸盐矿物，矿物组成复杂，原矿Sb品位2.46 %、WO3品位0.30 %、Ag品位34.16 g/t。为综合回收该矿石中有价元素，根据矿石性质研发了优先脱碳—锑硫混浮再分离—浮重联合选钨工艺。首先通过优先脱碳降低含碳矿物对锑浮选的影响，随后采用锑硫混浮再分离获得富银锑精矿和硫精矿，最后通过浮选和摇床重选获得钨精矿。闭路试验可获得锑品位44.62 %、锑回收率82.98 %，银品位582.2 g/t的锑精矿；WO3品位63.64 %、WO3回收率68.66 %的钨精矿。该锑多金属矿中的锑、钨、银均得到了有效回收，研究结果可为同类型矿石的综合回收提供参考。
关键词:
锑多金属矿；优先脱碳；锑硫混浮；浮重联合；综合回收；选矿工艺
Abstract:
The metallic minerals in an antimony polymetallic ore from Guangxi primarily consist of stibnite,pyrite,arsenopyrite,and scheelite.Gangue minerals include silicates such as quartz,muscovite,and potassium feldspar,as well as carbonates such as calcite and dolomite,indicating a complex mineral composition.The raw ore grades are 2.46 % Sb,0.30 % WO3,and 34.16 g/t Ag.To comprehensively recover valuable elements from this ore,a beneficiation process was developed,featuring priority decarbonization,bulk flotation of antimony-sulfur with subsequent separation,and a joint flotation-gravity separation for tungsten.The process begins with priority decarbonization to reduce the interference of carbonaceous minerals in antimony flotation.This is followed by the bulk flotation and separation of antimony and sulfur to produce silver-rich antimony concentrate and sulfur concentrate.Finally,flotation and table gravity separation are applied to recover tungsten concentrate.Closed-circuit tests yielded antimony concentrate with 44.62 % Sb grade,82.98 % Sb recovery,and 582.2 g/t silver;and tungsten concentrate with 63.64 % WO3 grade and 68.66 % WO3 recovery.Effective recovery of antimony,tungsten,and silver from the ore was achieved,providing a reference for comprehensive recovery of similar ores.
Keywords:
antimony polymetallic ore;priority decarbonization;antimony-sulfur bulk flotation;flotation-gravity joint process;comprehensive recovery;beneficiation process
